Il s’agit d’un émulateur de Sinclair ZX Spectrum.

Les améliorations:
– keep full emulation speed when the window is not focused
– the embedded JDK has been updated to 27+36
– updated input4j to 1.4.0
– updated dependencies
– fixed packaged start scripts (Linux single-instance lock, Windows JVM flags and working directory, macOS CLI arguments, AppImage desktop entry)
– fixed Linux speaker noise that stayed until the sound device was restarted, without adding delay between sound and action
– fixed video timing so INT-synced border effects match real 48K, 128K and Pentagon machines and stay aligned with the paper
– unused window space around the screen is filled with the current border color
– fixed Low Pass Filter stereo balance and made the strength slider Mild–Strong
– fixed undocumented XF/YF and WZ of repeating Z80 block instructions on the extra 5 T-states

